if you didnīt know yet, you can check when your HTC One was manufactured.
To find it out, go to settings >Info > device identity and check your device serial.
This is going to be helpful, when we try to identify batches with lots of defects and the other way round. + you can check the batch quickly via settings.
Edit: There is a way to find out everything via an official CN HTC website.
(thanks to @rambo12345)
For example mine is
decode your serial likes this.
HTYMDAABBBBB HT = Vendor HTC--> Hsinchu, Taiwan or SH = Shanghai, China Y = Year (3 = 2013) M = Month (hex 1...C = 1 - 12 months) D = Day (hex 1...9A..Z = 1 - 31 days) YY = Part Code ZZZZZ : Identification Number (decimal)
Hsinchu, Taiwan, 2013, February 28th
Please check yours and post it so I can collect them here for a better overview over the different batches
Here's some news for you, whether you be interested or not!
HTC are changing their Serial Number format from the classic HT[year][week] to something a bit more... exact.
The new format will read similar to HT[year][month][day]. I presume that they wish to be this precise for warranty purposes.
The month format shall be between 1 - 12, but the day format will take a slightly different shape.
Days will go from 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, V, W, X, Y, Z. Day Z represents day 31.
hamdir ( starter of the one x serial decoding/batch identifying + info)